Car won't do anything when you try to start it, happens intermittently, not always.

Hyundai starting problem-simply no action on the ignition switch but power to all other systems appears fine. Replaced electrical and mechanical side of ignition switch. Also tore apart and tested all of starter and bought a new battery. Took to a Hyundai dealership mechanic and they did not have any ideas on problem. We thought perhaps replacing the key cylinder would finally fix the problem but it appears it not as the problem is starting to occur again. Not sure what to try next????

9 Answers

...at this point am going to have to recommend that you get a copy of the schematic, a set of wire piercers for testing the wires, both when the problem is occuring and when it's not occurring...with the piercers, you don't have to disconnect anything, makin testing a jif-

My guess is the starter is being
starved of enough amperage. It may,
like the rest of the cars electric
system be getting some amps along
with 12volts, but not enough "juice".
If the starter itself has a marginal
ground I.e. loose bolts or even a oily
mounting flange, it won't allow the
current to go through the system.

Our 2006 Sonata is doing the same thing. It will start without issue for
weeks, then it will take 20 mins of turning the key to get it to start for a
week. All electrical works during the non starts and all fuses and
relays are good. Was going to replace the starter but have seen too
many on here throwing parts at the problem with no resolution. Will
never purchase another Hyundai.

The ignition lock cylinder and the ignition lock cylinder housing Likely the solution. My total cost with labor was $653.09. On 3/13/2012 at 11:08:11 A.M, under Hyundai case 4758349 (established while this vehicle was within warranty) .My headlights, bright beams, radio and clock simultaneous become disabled and any attempt in the normal course of operating this vehicle to shift the car between park and drive causes a loud grinding noise. This issue corrected itself after another grinding noise when shifting the gear lever into park and the car began functioning normally. At some point out of warranty the vehicle wouldn't start from the ignition. After replacing The ignition lock cylinder and the ignition lock cylinder housing the issues are solved

The car has been doing this since I got the car, brand new.
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This is a bit difficult to describe, but I will do my best.
Sometimes, when I start my Sonata, it will shake a lot or feel like it's pulling/jolting. It
will do this constant shaking or occasional p...